Arrangement in sewing machines for exchanging bobbins



March 24, 1 D. N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS 26 Sheets-Sheet 1 Filed May 23. 1961 l l l I l l I l l l I II l l I I l I l Day/d lVarmaa/ Bemmxs Erik Lanna/'7 70 114mm):

i l l March 1964 D. N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 25, 1961 -26 Sheets-Sheet 2 Fig. 2 22 l I63 357 325 GD (D n/ezfirs Dav/cl Nafandc/ Bemros Erik Lanna/'7 /rdnssah M h 1964 D. N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 23, 1961 26 Sheets-Sheet 3 Im 'nfa s Dav/d lVzfcznae/ Esme/'11s EMA Zenndrf Jilrdnsson March 24, 1964 n. N. BERNERUs ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Fil ed May 25, 1961 as Sheets-Sheet 4 Fig. 4

March 24, 1964 D. N. BERNERUS ETAL 3 ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 25, 1961 26 SheetsSheet 5 Fig. 5

EM)? Zermarf Ji/mmsson By W Y- 6 1477b??? ys March 24, 1964 N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 23, 1961 26 Sheets-Sheet 6 Fig. 6

March 24, 1964 D. N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed y 3, 1961 26 Sheets-Sheet 7 I I 21 Vcnfohs Dav/d Wa/ame/ fierwelws K Lanna/ 7 Ji/mn 580M 5y Ma QM? 9 W A/farneys March 24, 1964 D. N. BERNERUS ETAL ARRANGEMENT IN SEWING, MACHINES FOR EXCHANGING BOBBINS I Filed May 25. 196.1

March 24, 1964 D. N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BQBBINS 26 Sheets-Sheet 11 Filed May 25, 1961 Fig. 2]

nrenfars Dav/Z! Nafqnae/ Befihehus 5 /3? Lanna/'7 JZMyssm 5/ 5 Q WWW/rays March 24, 1964 D. N. BERNERUS ETAL.

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 25, 1961 26 SheetsSheet 12 I Invenfar s Dal/id Ndfanae/ BCf'flG/WS 5 M [wind/#5201680 ByM Z mA MM which 24, 1964 D. N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 25. v 1961 26 Sheets-Shet 1s Fig. 25

, I 1kmors David Nafiznde/ Berne'ras EM)? Lemar! Jihdnsson I By MW, a 1 W I March 24, 1964 D. N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 23, 1961 26 Sheets-Sheet 14 March 24, 1964 D. N. BERNERUS ETAL 3,125,973-

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 23, 1961 26 Sheets-Sheet l5 March 24, 1964 I D, N. BERNERUS ETAL 5,

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 25, 1961 26 Sheets-Sheet 16 March 24, 1964 D. N. BERNERUS ETAL 3,

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 23, 1961 26 Sheets-Sheet 17 March 24, 1964 IBERNERUS ETAL 3,

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 23, 1961 26 Sheets-Sheet 18 mllllllllll Will Inuenfors Dav/d Nafam'c/ Berna Ms fh/k 1012mm 75441165021 A 777F116 ys March 24, 1964 N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 25, 1961 26 Sheets-Sheet 19 Marqh 24, 1964 D. N. BERNERUS ETAL 3,125,973

ARRANGEMENT IN SEWING MACHINES FOR EXCHANGING BOBBINS Filed May 23, 1961 26 Sheets-Sheet 2O 

2. IN A SEWING MACHINE HAVING A RECIPROCATING NEEDLE ADAPTED TO SEW WITH A TOP THREAD AND A BOTTOM THREAD AT A NEEDLE WORKING POSITION, MEANS FOR SUPPLYING BOTTOM THREAD TO SAID WORKING POSITION, SAID MEANS COMPRISING A ROTATABLE MEMBER POSITIONED BELOW SAID NEEDLE, AT LEAST TWO SPACED HOOKS ON SAID MEMBER FOR CARRYING A SUPPLY OF SAID BOTTOM THREAD, SAID HOOKS BEING SPACED FROM EACH OTHER SO THAT WHEN ONE IS IN THE WORKING POSITION, THE OTHER IS IN A NON-WORKING, THREAD REPLENISHING POSITION, AND MEANS FOR ROTATING SAID MEMBER SO THAT SAID SPACED HOOKS ARE SEQUENTIALLY BROUGHT INTO SAID WORKING POSITION FROM THE NON-WORKING POSITION. 